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Harmony :
Harmony : A Time Synchronisation System for Visible Light Communication Access Points
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- Hewage, Kasun (författare)
- Uppsala universitet,Nätverksbaserade inbyggda system
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- Voigt, Thiemo (författare)
- Uppsala universitet,RISE,Datavetenskap,Uppsala University, Sweden,Nätverksbaserade inbyggda system,Datorarkitektur och datorkommunikation,Avdelningen för datorteknik,Datorteknik
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(creator_code:org_t)
- 2023-01-24
- 2022
- Engelska.
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Ingår i: SenSys 2022 - Proceedings of the 20th ACM Conference on Embedded Networked Sensor Systems. - New York, NY, USA : Association for Computing Machinery, Inc. - 9781450398862 ; , s. 435-447
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Abstract
Ämnesord
Stäng
- High-speed visible light communication (VLC) is a complementary technology to conventional radio frequency communication in wireless networks. One of the essential traits of VLC systems is the ability to provide wireless communication and illumination seamlessly. High-speed VLC systems use high-power LEDs as transmitters in their access points (APs). In real-world deployments, overlapping light beams from multiple APs are necessary to avoid unlit areas. However, overlapping light beams could cause interference in each other's communication at the receiver; hence APs must synchronise their communication. This paper presents Harmony, a time synchronisation system for VLC APs to synchronise their transmissions. Internally, Harmony uses synchronous transmissions in the infrared frequency spectrum to reach nodes over multiple hops. The evaluation of a prototype implementation of Harmony on a small-scale testbed shows that it can synchronise nodes up to nine hops with a maximum error of a few 100s of nanoseconds. While the enduring work on high-speed VLC systems primarily focuses on improving the performance of individual APs, Harmony provides an infrastructure for enhancing system-wide performance.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Nyckelord
- access points
- concurrent transmissions
- optical wireless communication
- synchronous transmissions
- time synchronisation
- visible light communication
- Light transmission
- Synchronization
- Communication access
- Communications systems
- Concurrent transmission
- High Speed
- Light beam
- Optical-wireless communications
- Synchronization systems
- Synchronous transmission
- Time synchronization
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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